CVE-2020-16127
Published: 03 November 2020
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location.
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
accountsservice Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(0.6.55-0ubuntu13.2)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(0.6.55-0ubuntu13.2)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(0.6.55-0ubuntu12~20.04.4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code not present)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code not present)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code not present)
|
Notes
| Author | Note |
|---|---|
| mdeslaur | This vulnerability is in an Ubuntu-specific patch and doesn't affect the upstream code. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16127
- https://usn.ubuntu.com/usn/usn-4616-1
- NVD
- Launchpad
- Debian